al HUR MOS VISE DUR SP. OM (GES: 
The surface is furnished with numerous pointed mammulee, 
being in length about 2 mm. The whole specimen is 10 mm 
long and 6 mm broad. The colour is light yellow. Thetspr 
cules agree well with those of Bowerbank's type-specimen, 
figured: II Plate 20 forts 
Habitat. North-eape, Lat. 71? 13', Long. 26? 2', depth 180 
fathoms (30 N. 5). 
Hymeraphia spitzbergensis n. sp. 
Plate 24, fig. 138—20, Plate 27, fig. 12. 
This species is a true Hymeraplhia according to the de- 
scription given by Bowerbank of this genus in his Mono- 
graph, vol. I, pag. 189. In our collection we have only one 
specimen of this species; it merusts a worm-tubej 206 mm 
long, 5 mm thick. From a; single basal membraner sprmme 
numerous large spicules passing through the surface of the 
sponge, which is therefore hispid almost as the thin-haired 
tail of a rat. I have not seen the oscula which are probably, 
as in other Hymeraphie, minute, dispersed. 
Skeleton. 'The skeieton consists of very long spinulate 
spicules and of slender acuate or rarely subspinulate spicules. 
The long spinulate spicules (Plate 24 fig. 18) are by their 
base attached to the basal membrane. They are generally 
slightly flexuous, tapering from the base to the long and 
slender point. The length of these spicules is variable, not 
exceeding 2,; mm. 
The slender acuate spicules (Plate 24, fig. 19, 20). The dis- 
position of these spricules is very characteristic. They are 
collected in bundles, placed in the inner parts of the sponge 
and not passing through the dermis as the spinulate spicules. 
The length is 0,3 mm. They are as the other kind straight 
OCCETVed: 
Colour. Grey, when dried. 
Habitat. Spitzbergen (Sp.); the exact locality and the depth 
unknown. 
